METHOD FOR PRODUCING CMB CATALYST RECYCLED WITH LITHIUM ION BATTERY AND TERNARY CATHODE MATERIALS

WIPO Patent Application WO/2011/065682

A2

The present invention relates to recovery of cobalt and manganese from waste battery materials, and a method for making liquid catalysts from recovered Co-Mn-Br (CMB). More specifically, lithium-ion powder and ternary cathode materials are produced by leaching scrap battery materials with sulfate reduction, and sequential application of the following three process steps: neutralization titration, solid-liquid separation and solvent extraction, leads to recovery of cobalt and manganese as a liquid extract comprised of a Co-Mn-Br catalyst. According to the present invention, a CMB liquid phase catalyst that is useful for application in various manufacturing processes is provided by recovery of cobalt and manganese from waste ternary cathode and lithium-ion battery materials, enhancing the removal of other impurities, and recovering high purity cobalt and manganese.

SHIN SHUN-MYUNG (KR)
KANG JIN-GU (KR)
JU SUNG-HO (KR)
CHANG HAN-KWON (KR)
SOHN JEOUNG-SOO (KR)

PCT/KR2010/007750

June 03, 2011

November 04, 2010

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KOREA INST GEOSCIENCE & MINERA (KR)
SHIN SHUN-MYUNG (KR)
KANG JIN-GU (KR)
JU SUNG-HO (KR)
CHANG HAN-KWON (KR)
SOHN JEOUNG-SOO (KR)

B01J38/68; B01J38/60; H01M10/54

KR20090087801A	2009-08-18
US6001763A	1999-12-14
US5858061A	1999-01-12
JP2003203680A	2003-07-18

NAMCHON PATENT & LAW FIRM (KR)
특허법인 남촌 (KR)

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